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DSS Document contains the code for the creation and validation of XAdES, CAdES, PAdES and ASiC signatures.
/**
* DSS - Digital Signature Services
* Copyright (C) 2015 European Commission, provided under the CEF programme
*
* This file is part of the "DSS - Digital Signature Services" project.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package eu.europa.esig.dss.signature;
import eu.europa.esig.dss.AbstractSignatureParameters;
import eu.europa.esig.dss.model.DSSDocument;
/**
* Extends the level of AdES signature of a document. After level -B, going upper in the signature format level
* consists of adding unsigned properties to the signature. It can be done without breaking the signature.
*
* @param implementation of signature parameters corresponding to the supported signature format
*/
public interface SignatureExtension {
/**
* Extends the level of the signatures contained in a document.
*
* @param document The signed document to be signed
* @param params the parameters for the extension
* @return the extended document
*/
DSSDocument extendSignatures(DSSDocument document, SP params);
}